Underwater elastomeric energy storage propulsion unit (UEESPU) is a kind of new propulsion unit, which dramatically features as follows: simple structure, low cost, in particular, low noise.

水下弹性储能推进装置是一种新颖的推进装置，具有结构简单、成本低、噪声很小等显著优点，非常适合装备我国的船舶。

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Once you are on the surface, the main unit for propulsion are your arms, so it is very important that your draw the right pattern underwater, and that is a hourglass pattern.

身体浮到水面后，最大的推进力量就来自手臂。因此正确的水下划水路线非常重要，也就是沙漏状划水。

youdao

Once you are on the surface, the main unit for propulsion are your arms, so it is very important that your draw the right pattern underwater, and that is a hourglass pattern.

身体浮到水面后，最大的推进力量就来自手臂。因此正确的水下划水路线非常重要，也就是沙漏状划水。

youdao